block: move policy from disk to part0
Move disk->policy to part0->policy. Implement and use get_disk_ro().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 9cb8380..4411bdd 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -145,7 +145,6 @@
struct kobject *slave_dir;
struct timer_rand_state *random;
- int policy;
atomic_t sync_io; /* RAID */
unsigned long stamp;
@@ -403,6 +402,11 @@
extern void set_device_ro(struct block_device *bdev, int flag);
extern void set_disk_ro(struct gendisk *disk, int flag);
+static inline int get_disk_ro(struct gendisk *disk)
+{
+ return disk->part0.policy;
+}
+
/* drivers/char/random.c */
extern void add_disk_randomness(struct gendisk *disk);
extern void rand_initialize_disk(struct gendisk *disk);